Late August in Lynn smells like cut grass and warm brick, and the outfield at Fraser Field is the greenest thing for blocks. Romeros Landscaping and construction chases that same green across the city's yards, mowing on a steady route, edging drives and sidewalks, trimming the strips along fences a mower cannot reach. Grass cut on schedule holds its color into the fall instead of burning out. When the leaves come, the route turns into cleanups: beds emptied, lawns raked clear, the yard handed back tidy. Visible results, week after week, and no mystery to any of it.